Incubator



P. KAISER.

INCUBATOR.

APPLICATION FILED FEB. 17, 1919.

3 SHEETS-SHEET 77 r v 3 31 u J M M Patented Mar. 1, 1921.

P. KAISER.

INCUBATOR.

APPLICATION FILED FEB. I7, 1919.

3 SHEETS-SHEET 2 Patented Mar. 1, 1921.

JKAISER.

INCUBATOR.

APPLICATION FILED FEB. 17, 1919.

Patented Mar. 1, 1921.

3 SHEETS-SHEET 3' UNITED N w" *PMENT mm PETER Knisnn, or cnowir-rorn'r, innfsnanssfenon o 103 DEGREEJ-IN'G'UIBATOB comrimmor cnowngronrr, -I1\TDIANA, A CORPORATION or INDIANA.

' To 'cll whom may concern mcuizii'ron.

- B "t knownthat I, PnTnnKAisnR; a citi zen of the United States-arid a resident of Crown Point, in the c'ountyiofL'ake ,and

State of Indiana, have invented certain new and useful Improvements in Incubators; of which the following is a full, clear and e gact specification.

-My invention is concernedwith a warm water generating plant for incubators which isgcontrolled by a thermostat'to keep the water, circulating"therethrough supplied at a temperature which will keep the temperag: ture of 'theinside'of the incubator constant during all the extremes'of weather that may be met with, and to this endconsists of a.

novel construction which will be fully de} scribed and the novel features-thereof'parti'cularly pointed out in the claims}; 7

One of the difiicult points isto produce such a'generating plant on a small scale as shall not be deleteriously affected by the gusts of wind that are met with in warm or hot v'veather,when the incubator 1S kept .in a room or place where such: gusts have I access to it, and my plant isso desrgned'that it is impossible, to blow out'the by such gusts, although'thehot air rising from Q the lamp canbe readily deflected away -from the hot water reservoir'when the interior or th'e'incnbator becomes too warm. V e To illustrate my invention, Iannex hereto three sheets of drawings in which the same reference characters are used to designate identic'al parts in' all'the figures, of which Figure 1 is a sideelevation of an incubatorv having my improvements applied "thereto;

. Fi '2 i git-op 1m'1 iewer-0ne end cf thes mj Fig. 3 is martian sectionpon' an elarged scale, on the line 3-3 f FIgAQI v Fig. 4: is it P an View in hor z t lg 1 .50' e x 7 c i e The casing 10 may be of any desired con,

' Fig. 5 1321 611310211 sectionlon line 5 5 Fig; 7 isa verticalsection, on an enlarged scale, on line 7-4? of Fig; 2. I

struction, and is 'supported'onjthe legs 11,

and the interior of the casing is supplied 'with some arrangement of warm water c1rculating 'plpesfsuch for instance as are specification o f Iietters aiea.;

)At the centerare the two upwardly projecting. standards '18 and. 19, which might be s t'ructnr'ally considered as constituting ex tensions of'the flanges 17 on their respective slightly higher than the "adjacentflange' 17 Pivoted in suitable apertures in the'stand ards 18and 19 by the pintles j secured in gages thelflange 24. r,

Patefit 90,418, dated July Projecting twardly from the ing (see Fig. 4:)1 which base ispre ferably. i

r in the for-m of arectangl'e, andhas at'the ends thereof thetwo upwardly-projecting three-sided flanges 17'- surrounding its endsL sides-, and: these standards 18 and 19 are connected at their upper ends by theftwo =crossp1eces 20 and 21, the crosspiece 20 being 'located ata-sllghtly higher elevation than I the'crosspiece 21 for-the purpose to-be described -At the center of the base 16) is the rectangular aperture 22, into which extends the-upper end of thelamp-chimney 23.1: At

the right-hand side *of the aperture 22 is the'upwa'idlly p'roj ecting'flange 2 4: forminga part-of the base 16 and preferably extending,

the sides thereof is the swinging flue 26,

metal and is rectangular in horizontalc'rosswhich jis preferably; constructed ;-of sheet j sectiongand preferably. having "the sides thereof-convergingslightly toward the top,

as seen in Fig. The top ofthe right-hand side-engages the crosspiece 2l, being nor- 'mallyfheld against. said fcrosspiece by the gravity of the apparatus and thelower edge 5 V I Lof the' opposite; side likewise normallygen- Located within the incubator casin giatany suitable plac'eis a'thermostat element,; such as those'shown: in my above "mentioned-r patent, the expansion of which swing a ievr 27- suita'bly fulcrumed in the interior of the casing and having an armqprojecting outwardly through' an-- aperture 28 in the casing and connected by the'link 29 with one arm of a'j lever 30 fulcrum'ed at 31 in a supporting bracket 32 secured to theside of the incubator casing. The armof the lever 30 to'whichth hnk 29 is connected is pro- Sec ured to the under side of the ba'se16 ofvided with the weight 33 adjustably secured thereon, so'the parts can be balanced as desired, and the end of the .other arm is connected bythe link 34 with an arm 35, best seen in Figs. 3 and 4, which is riveted tothe :the pivoted flue 26 is :tilted, 1 preferably provide-the inlet 44 in the right-hand side right-hand side ofthepivoted flue-26.

the bracket casting, as by the bolts and nuts 36 is the housing 37, which is preferably incubator becomes too greatthe thermostat element by its expansion swings the outer t' end of leverv27 downward, pulling down the link '29, which through the'lever- 30 lifts the link 34 and swings the pivoted flue 26 tothe dotted line position in which the upper end discharges the hot air passing therethrough' into the atmosphere without com-.- ing into contact with the hot water reservoir, or if the pivoted flue is turned to its extreme position, the hotair is deflected by the left-hand side there'ofaway from the hot water reservoir. With the construction thusfar described, it willibe obviousthat' when the pivotedflue is in its tilted position,

if agust of air should come'from-the left hand side, itwould strike that side of the pivoted'flue and be deflected downward therefrom into the chimney '23 and extinguish the lamp, and to prevent this occurrence I provide the wind shield casing 38,

which is preferably made of-sheet "metal,

and, as best seen inv Fig. 4, is of agenerally rectangular shape .in horizontal cross-section, and is of the proper dimension so that its bottom can be sprung over and will fit snugly against the flanges 17 holding it in placeil To accommodate the .ends'of the pintles35, which are preferably of some length so that the pivoted flue 26 can swing:

freelyand without any possibility-of binding no matter how: hot it'gets, the wind shield casing hasthe angular notches 39-cut in the sides thereof, and likewise to permitthe arm 35 to swing freely through its range of movement, the rear side of the wind shield.

casing38 has the larger recess 40 cut therein,

which recess may bemade continuous with or a part of the recess'39on that side.- As

the gusts of air coming from the right-hand 1 side willnot be deflected downward into the chimney 23 by the inclination of the sides of the pivoted flue 26, I might dispense with the wind shield 38 on this side, but I, pref erably employ it and utilize it in part as a support for the bottom 41 of the lcylindri cal hot air casing 42. Topermit the entrance of cool 'air to the inlet aperture 43 in the bottorn41 of the hot air casing 42 when of thewind shieldcasing 38; Thehot air casing 42 is preferably constructed ofsheet metal andissupported onpthe top of ithat side of thefwind shield oasingi38, and'is-also supported on the top; of the standards 18:.

and19 and on the cross'piece20, preferably being secured, in place by'ithef screws 45 passed through apertures inlthe said bottom r 41 and threaded into the tops of the stand-j ards 18 and. 19. The top of the hot air case ing 42 preferablyconsists of a [cover 46 0f sheet metal havingthe central aperture 47 therein and;v the downwardly. projecting flange 48 which fits snugly'on thetop ofthe sides of the casing. A slot 49 is provided in theside of the casing 42 adjacentto the body of the incubator, to accommodate the two pipes 50 and 51 which extendjfrom the interior of the warm water reservoir 52' intothe interlor of the incubator casing and are connected to the water circulating pipes" so that warm waterrising fr'om'the reservoir consist of a sheetinetal cylinder having the imperforate top 53 isecuredthereon anda deeply concave botto'r'n54, which preferably takes the form of a truncated cone/secured at itslarger end to therbott'om ,of thecylindrical outer portion ofthe casing. A cook 55 to draw ofl the water is secured'tothe bottom of the reservoir'and extends through a suitable aperture in the hot air casing 42.

The hot air and products of combustion rising through the pivoted fine 26 in its normal position rise through theiinlet 43-and ascend to the "convex bottom 54 and the heat thereof is absorbed by the water in the warm water reservoir, and as the hot air already in the bottom is cooler it is displaced by the hot air that is constantly rising, and it ascends throughthe annular passage' between the outside of the warm water reservoir 52 and the inside of thehotjair casing 42, and passing over the top 53 of the warm water.

reservoir andfinally escapesthrough the outlet aperture 47 I have: foundthat much; more eflicient action is obtained byintroducing the comparatively large tube 56 in the,

bottom so that it is kept filled with the water and is located where the cooler water from I the tube 51 returningfrom the incubator enters the tube 56 at once and receivesall the available heat of the hot air coming out; through the pivoted flu 2 V .v 4 ,i I

V fvoir and piping connected therewith, of a .40

Toikeep the circulating system provided with hot water, I provide the filling cup 57,

best seen in Fig, '7, which is-connected with the pipes'50' and. 51 bythe small pipes 58 and 59. 1 i V v.

While I have herein shown and described my novel reservoir, I do not herein claim same, as it is madethe subject matter of my divisional application No. 336,984, filed No! vember 10,1919. j While I have shown anddescribed my 7 invention as embodied in the-form which I consider best adapted to carry out its purposes, it will be understoodthat it is capable of modifications and that "I do not desire to be limited in the interpretation "of the following claims except as may be necessitated by the state of the prior art.

- What I claim as new, and desire to secure by Letters Patent of the Unitedc States is:

I 1. In an apparatus of the class described,

voir and piping connected therewith, of lamp beneath the reservoir having a stationary chimney thereon, a-flue pivoted near its center'between the top of the chimney and the bottom of the reservoir, a thermostat element, connections between the thermo stat element andfthe pivoted flue to swing,

the latter to deflect the heated air fromthe warm water reservoir when the temperature at the thermostat is too great, and a wind shield casing open'at the top but otherwise inclosing the pivoted flue on the side to- Ward which the top is swung by the action of the thermostat element. 4

2. In an apparatusv of the class described, the combination with a warm water reserlamp beneath the. reservoir having a stationary chimney thereon, a flue pivoted near its center between the top'of the chimney and the bottom of the reservoir, a thermostat element, connections between the thermostat and the pivoted flue to 'swingthe latter to deflect the heated air from'the'warm 'water reservoir when the temperature at the thermostat is too great, and a rectangular wind shield casing surrounding thepivoted flue .standards. c the comblnat on with a warm'waterreseron all sides thereof, that portion of the cas ing above the side toward whichthe top of-' the pivoted flue is swung by the action of the thermostat element being open forthje 'purpose described.

3. In an. apparatus ofithe classdescribed,

and having a horizontal web provided at'its ends with an upturned flange and at its center with a pair of standards, a flue-member pivoted between the standards, a lamp supported from the bracket and having the tom of the flue in the normal position of the latter, a windshield casing fitting overthe flange and extending up to the top of the standards, and a warm water reservoir con-'- 1 top of its chimney registering with thebotnected by circulating pipes with the interior of theincubator and'supported above t 4. In an apparatus of the combination with an incubator casing, of

Y a bracket projecting from the side thereof and having a horizontal web provided at its ends with an upturned flangeand at its center with a-pair of standards, a flue member pivoted. between the standards, a lamp sup .ported from the bracket and having the'top V of "its chimney registering with the bottom 80 of the flue in the normal position of: the

latter, a wind shield casing connected to the v flanges and extending to the top of the stand- 4 ards,:a warm'water reservoir connected by cubator casing and supported above' the air outlet in the center of its top surrounding air inlet registering with thetop of the flue In witness whereof I have hereunto: set

the class described, 7

v circulating pipes with the interior of the in-i 8 5, standards, and ahot air. casing having "a hot i I my hand and afiixed my seal this 12th day of- Feb. A. 13. 1919.

1 PETER KAISER; e

I -Witn esses:' V r CLAYTON D. Room 1 MARTIN J. SMITH. f

5'5 the'c'ombinationwith an incubator casing, of] a bracketprojectingfrom the side thereof '7 T 

